According to Japanese publisher Kodansha, a new OAD will be bundled with the limited-edition 11th volume of Tozen Ujiie’s original 「Seitokai Yakuindomo」 manga series. It will be produced by studio GoHands. The main cast and staff will remain the same as previous installments.

The limited-edition 11th manga volume of Seitokai Yakuindomo with OAD is slated for release on February 17th, 2015.

[Source]